
WHO WE ARE
BOARD OF DIRECTORS.

Dr. Vasudevan Tiruchelvam
President
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Lisa Roupas
Secretary
With 17 years of experience as a nurse practitioner, I have built a career spanning hospital medicine, general surgery and bariatric care. Beginning with 4 years as a hospitalist and 13 years in general surgery, I now specialize in bariatric surgery and weight management, helping patients achieve long-term health and wellness.
Prior to becoming a nurse practitioner, I worked as a registered nurse in oncology and the medical ICU, experiences that shaped a deep commitment to compassionate, patient-centered care. Beyond clinical practice, I have served on the board of the York County Medical Foundation for the past decade, helping with local and global health initiatives. My dedication to global service is also seen in my board role with Living Word Church's Global Missions and with the Isaac Ishmael Initiative through Accord, as well as ongoing volunteer work on international medical and surgical trips since 2020. I am passionate about connecting with people from all backgrounds, striving to ensure every patient and community member feels seen, valued and known.

Marc Keller
Treasurer
Marc Keller is the Chief Financial Officer and General Manager of Susquehanna Micro, Inc., a role he has held since June 2019. A Certified Public Accountant (CPA), Marc brings extensive financial expertise and operational leadership to the company, guiding strategic planning, fiscal management, and organizational growth.
Outside of his professional responsibilities, Marc is an avid golfer and enthusiastic traveler. He enjoys exploring new destinations and spending time on the course, where he values both the challenge and the camaraderie the sport offers.

Dr. Nancy Nagib
Vice President
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Steven Carr
Steven M Carr Esquire is the managing partner in the York law firm of Ream, Carr, Markey, Woloshin, & Hunter and has a diverse civil practice. He is a graduate of York Catholic High School, LaSalle University, and the Dickinson School of Law

Gwendolyn Baker
Executive Secretary
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